Maetin d



M. D. THAYER. Windmill.

No. 229,774. Patented July 6,1880.

raaf ifa y UNITED ASTATES PATENT OFFICE.

MARTIN D. THAYER, 0E LIvoNIA, NEW YORK.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 229,774, dated July 6,1880.

V Application led J anuai'y 6, 1880.

To all whom it mag/ concern Be it known that I, MARTIN D. THAYER, ofLivonia, in the county of Livingston and State of New York, have'invented a new and useful .Improvement in Windmills, which is fullydescribed iu the following specification.

In the windmill which is the subject of my invention the wind-wheeliscarried on a horizontal shaft, from Which the power is transmitted to avertical shaft by a pair of bevelwheels, the said horizontal shaftbein gmounted on a frame, which also carries the tail or regulating vane, andis itself mounted on a pivotal ,i cone-support for turning with the windas it shifts around.

The invention consists of the particular conrivance of this frame andits pivotal cone- "support with reference to each other, also to thegearing of the wheel-shaft with the vertical shaft and to thesupporting-arm of the tail or regulating vane.

Figure l is a side elevation of a windmill constructed according to myinvention, and Fig. 2 is a sectional elevation taken through the pivotalsupport of the revolving frame and parallel with the plane of thewind-wheel.

A represents the lower portion of the pivotal `support for thewheel-carrying frame, to be erected upon a tripod or any other tower ofapproved form. It has a shoulder at B, to form the pivotal bearing forthe base bar or beam C of the said wheel-frame, which bar has a verticalhole of the size ofthe upper sect-ion, D, of support A, through whichsaid section passes, for securing the bar and forming the pivot aroundwhich said bar revolves while resting on the shoulder B.

At the upper end of section Dis another shoulder, E, whereon the upperbar, F, of the wheel-frame similarly rests, said bar having a verticalhole for the top pivot, G, of the framesupport. This frame-support has ahole, H, through its center from end to end, in which the vertical shaftJ is fitted, and said shaft has its bearings at the upper end in thecrossbar K and cap L, tted above and resting on bar F, with the hub ofwheel M resting on it for the vertical support of the shaft while itrests on the top of pivot G, corresponding in effect to a third shoulderfor the vertical support of the frame.

The bars F and K are connected to the uprights N', mounted on oppositesides of cone A D upon the base C; and forming the bearings for thewind-wheel shaft() above the top of shaft J and gearing therewith by itswheel M and the wheel M on the upper end of the shaft J, with which itworks, and transmits the power all the same whatever the direction ofthe wind may be, the said gears affording no obstruction -to theshifting of the windwheel with thewind. This vertical shaft J will behollow in the practical machine, for a cord by which to regulate thevanes ofthe wind-wheel, to han g down to the reach of the attendant.Now, it is important that this frame or head and its pivotal supports,which are for supporting the overbangin g wheel and the regulating-vaneP substantially and permanently, and at the same time turning about asthe wind shifts without interfering with the operations of thetransmitting-gears, shall be contrived and arranged in the bestconditions fordurability and for the best results in operation, and yetbe of such simple construction that it may be fitted together out of afew pieces of wood and with the ordinary skill and tools ofwood-Workers, all of which it is believed are secured by theconstruction and arrangement above described.

The object is to avoid the complexity ot' arrangement commonly found inthese mills of later construction, involving many parts and expensivelittings in metal.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

The combination, in a windmill in which the horizontal shaft of thewheel is geared to a vertical transmitting-shaft by a pair ofbevelwheels, of the hollow pivotal supports A D, surrounding said shaftand having the shoulders B E and top G, with the wheel andregulating-vane, supporting-frame, consisting of the base G, uprights N,crossbar F, and the bearing K L, the latter resting on top G, bar F onshoulder E, and bar C on shoulder B, all substantially as described.

MARTIN D. THAYER.

Witnesses:

A. N. STEWART, J oIIN S. BEECHER.

